AUTHOR=Yamashita Naoki , Hirayama Tomoko TITLE=A method for simultaneously measuring friction and gap at metal–lubricant interface by combined use of atomic force microscopy and line-and-space patterned metal films JOURNAL=Frontiers in Mechanical Engineering VOLUME=10 YEAR=2024 URL=https://www.frontiersin.org/journals/mechanical-engineering/articles/10.3389/fmech.2024.1470775 DOI=10.3389/fmech.2024.1470775 ISSN=2297-3079